Guyana National Bureau of Standards |  Portal 

    Standards

    Seamless and welded (except submerged arc-welded) steel tubes for pressure purposes - Eddy current testing for the detection of imperfections
    Electric resistance and induction welded steel tubes for pressure purposes - Ultrasonic testing of the weld seam for the detection of longitudinal imperfections
    Submerged arc-welded steel tubes for pressure purposes - Ultrasonic testing of the weld seam for the detection of longitudinal and/or transverse imperfections
    Seamless and welded (except submerged arc-welded) steel tubes for pressure purposes – Ultrasonic testing for verification of hydraulic leak-tightness
    Seamless and hot-stretch-reduced welded steel tubes for pressure purposes – Full peripheral ultrasonic thickness testing
    Steel tubes for pressure purposes – Qualification and certification of non-destructive testing (NDT) personnel
    Seamless and welded steel tubes for pressure purposes - Ultrasonic testing of tube ends for the detection of laminar imperfections
    Welding – Materials for resistance welding electrodes and ancillary equipment
    Tungsten electrodes for inert gas shielded arc welding, and for plasma cutting and welding - Codification
    Equipment used in gas welding, cutting and allied processes - Safety devices for fuel gases and oxygen or compressed air – General specifications, requirements and tests